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From "Todd Lipcon (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-2766) HA: test for case where standby partially reads log and then performs checkpoint
Date Sat, 07 Jan 2012 00:31:39 GMT
HA: test for case where standby partially reads log and then performs checkpoint
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                 Key: HDFS-2766
                 URL: https://issues.apache.org/jira/browse/HDFS-2766
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: ha, name-node
    Affects Versions: HA branch (HDFS-1623)
            Reporter: Todd Lipcon
            Assignee: Aaron T. Myers


Here's a potential bug case that we don't currently test for:
- SBN is reading a finalized edits file when NFS disappears halfway through (or some intermittent
error happens)
- SBN performs a checkpoint and uploads it to the NN
- NN receives a checkpoint that doesn't correspond to the end of any log segment
- Both NN and SBN should be able to restart at this point.

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